ASTROSAT CZTI

Data Quality Report

Orbit 10410

Creation date: 2024-06-27T15:59:07.382827
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev$

Source files: Data quality report (detailed, human readable) | Data quality report (concise, machine readable)

Observation information


Basic statistics of files

Param Original file Final file
FilenamemodeM0/AS1G07_046T01_9000001506_10410cztM0_level2.evt modeM0/AS1G07_046T01_9000001506_10410cztM0_level2_quad_clean.evt
Size (bytes)135,783,36013,302,720
Size129.5 MB 12.7 MB
Events in quadrant A931,28767,597
Events in quadrant B934,13575,610
Events in quadrant C887,39570,207
Events in quadrant D1,238,89162,217

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A09558
B09656
C09655
D09351

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A093705636
B0101156352
C094345727
D0119086957

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A052
B063
C063
D063

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A16941388.146399%
B16631519.079976%
C17241046.032483%
D18071377.581627%

Noise dominated fraction

Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.

Quadrant # 1 sec bins Bins with >0 counts Bins with >2000 counts High rate bins dominated by noise Noise dominated (total time) Noise dominated (detector-on time) Marked lightcurve
A 2524 2009 0 0 0.00% 0.00%
B 2524 1976 0 0 0.00% 0.00%
C 2523 2041 0 0 0.00% 0.00%
D 2524 2054 1 1 0.04% 0.05%

Top noisy pixels

Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1

Pixel properties Quadrant properties
Quadrant DetID PixID Counts Sigma Mean Median Sigma
A 13 251 60707 1241.82 226 219 48.7
A 0 226 2034 37.26 226 219 48.7
A 12 194 1782 32.09 226 219 48.7
B 4 239 35447 784.29 221 215 44.9
B 0 219 20013 440.72 221 215 44.9
B 4 81 7403 160.01 221 215 44.9
C 14 234 5346 93.75 226 225 54.6
C 13 61 1646 26.01 226 225 54.6
C 3 202 539 5.75 226 225 54.6
D 1 20 148822 2499.49 235 227 59.5
D 8 195 105444 1769.83 235 227 59.5
D 1 52 43797 732.88 235 227 59.5

Detector plane histogram (DPH)

Histogram calculated using DETX and DETY for each event in the final _common_clean file

Quadrant A Quadrant B
Quadrant D Quadrant C

Count rate plots and images

Plot type Count rate plots Images
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data.
Quadrant-wise count rates
Data is divided into 100 sec bins
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins

Housekeeping plots

Parameter Plot
CZT HV Monitor
D_VDD
Temperature 1
Veto HV Monitor
Veto LLD
Alpha Counter
_CPM_Rate
CZT Counter
+2.5 Volts monitor
+5 Volts monitor
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter